libkvm: remove ppc functions from callbacks
[qemu-kvm/fedora.git] / linux-user / m68k-sim.c
blob8a2b1d872c37c4e47034352518277a1e37f12835
1 /*
2 * m68k simulator syscall interface
4 * Copyright (c) 2005 CodeSourcery, LLC. Written by Paul Brook.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 * MA 02110-1301, USA.
22 #include <sys/types.h>
23 #include <sys/stat.h>
24 #include <errno.h>
25 #include <fcntl.h>
26 #include <unistd.h>
27 #include <stdlib.h>
28 #include <stdio.h>
29 #include <time.h>
31 #include "qemu.h"
33 #define SYS_EXIT 1
34 #define SYS_READ 3
35 #define SYS_WRITE 4
36 #define SYS_OPEN 5
37 #define SYS_CLOSE 6
38 #define SYS_BRK 17
39 #define SYS_FSTAT 28
40 #define SYS_ISATTY 29
41 #define SYS_LSEEK 199
43 struct m86k_sim_stat {
44 uint16_t sim_st_dev;
45 uint16_t sim_st_ino;
46 uint32_t sim_st_mode;
47 uint16_t sim_st_nlink;
48 uint16_t sim_st_uid;
49 uint16_t sim_st_gid;
50 uint16_t sim_st_rdev;
51 uint32_t sim_st_size;
52 uint32_t sim_st_atime;
53 uint32_t sim_st_mtime;
54 uint32_t sim_st_ctime;
55 uint32_t sim_st_blksize;
56 uint32_t sim_st_blocks;
59 static inline uint32_t check_err(CPUM68KState *env, uint32_t code)
61 env->dregs[0] = code;
62 if (code == (uint32_t)-1) {
63 env->dregs[1] = errno;
64 } else {
65 env->dregs[1] = 0;
67 return code;
70 #define SIM_O_APPEND 0x0008
71 #define SIM_O_CREAT 0x0200
72 #define SIM_O_TRUNC 0x0400
73 #define SIM_O_EXCL 0x0800
74 #define SIM_O_NONBLOCK 0x4000
75 #define SIM_O_NOCTTY 0x8000
76 #define SIM_O_SYNC 0x2000
78 static int translate_openflags(int flags)
80 int hf;
82 switch (flags & 3) {
83 case 0: hf = O_RDONLY; break;
84 case 1: hf = O_WRONLY; break;
85 case 2: hf = O_RDWR; break;
86 default: hf = O_RDWR; break;
89 if (flags & SIM_O_APPEND) hf |= O_APPEND;
90 if (flags & SIM_O_CREAT) hf |= O_CREAT;
91 if (flags & SIM_O_TRUNC) hf |= O_TRUNC;
92 if (flags & SIM_O_EXCL) hf |= O_EXCL;
93 if (flags & SIM_O_NONBLOCK) hf |= O_NONBLOCK;
94 if (flags & SIM_O_NOCTTY) hf |= O_NOCTTY;
95 if (flags & SIM_O_SYNC) hf |= O_SYNC;
97 return hf;
100 #define ARG(x) tswap32(args[x])
101 void do_m68k_simcall(CPUM68KState *env, int nr)
103 uint32_t *args;
105 args = (uint32_t *)(unsigned long)(env->aregs[7] + 4);
106 switch (nr) {
107 case SYS_EXIT:
108 exit(ARG(0));
109 case SYS_READ:
110 check_err(env, read(ARG(0), (void *)(unsigned long)ARG(1), ARG(2)));
111 break;
112 case SYS_WRITE:
113 check_err(env, write(ARG(0), (void *)(unsigned long)ARG(1), ARG(2)));
114 break;
115 case SYS_OPEN:
116 check_err(env, open((char *)(unsigned long)ARG(0),
117 translate_openflags(ARG(1)), ARG(2)));
118 break;
119 case SYS_CLOSE:
121 /* Ignore attempts to close stdin/out/err. */
122 int fd = ARG(0);
123 if (fd > 2)
124 check_err(env, close(fd));
125 else
126 check_err(env, 0);
127 break;
129 case SYS_BRK:
131 int32_t ret;
133 ret = do_brk((abi_ulong)ARG(0));
134 if (ret == -ENOMEM)
135 ret = -1;
136 check_err(env, ret);
138 break;
139 case SYS_FSTAT:
141 struct stat s;
142 int rc;
143 struct m86k_sim_stat *p;
144 rc = check_err(env, fstat(ARG(0), &s));
145 if (rc == 0) {
146 p = (struct m86k_sim_stat *)(unsigned long)ARG(1);
147 p->sim_st_dev = tswap16(s.st_dev);
148 p->sim_st_ino = tswap16(s.st_ino);
149 p->sim_st_mode = tswap32(s.st_mode);
150 p->sim_st_nlink = tswap16(s.st_nlink);
151 p->sim_st_uid = tswap16(s.st_uid);
152 p->sim_st_gid = tswap16(s.st_gid);
153 p->sim_st_rdev = tswap16(s.st_rdev);
154 p->sim_st_size = tswap32(s.st_size);
155 p->sim_st_atime = tswap32(s.st_atime);
156 p->sim_st_mtime = tswap32(s.st_mtime);
157 p->sim_st_ctime = tswap32(s.st_ctime);
158 p->sim_st_blksize = tswap32(s.st_blksize);
159 p->sim_st_blocks = tswap32(s.st_blocks);
162 break;
163 case SYS_ISATTY:
164 check_err(env, isatty(ARG(0)));
165 break;
166 case SYS_LSEEK:
167 check_err(env, lseek(ARG(0), (int32_t)ARG(1), ARG(2)));
168 break;
169 default:
170 cpu_abort(env, "Unsupported m68k sim syscall %d\n", nr);